Improvement in filters



UNITED STATES WILLIAM T. CLASS, OF OUMMINSVILLE, ASSIGNOR TO E. RUBENOVVAND OHAS. JOSEPH, OF CINCINNATI, OHIO.

iMPROVEMENT IN FILTERS.

I Specification forming part of Letters Patent N0. 14,25 3, datedSeptember 13, M564.I

To all trhom it may concern vvBe it known that I, WILLIAM T. CLAss, ofOumminsville, in the county of Hamilton and State ot Ohio, have inventedcertain new and useful Improvements in a Filter; and I do hereby declarethe following to be a full, clear, and exact description of the same,reference being had to the accompanying drawing, making a part ot' thisspecification, in which- Figure l represents a vertical section throughthe filter.

My invention consists` in dividing` the interior of the case by aperforated diaphragm, so as to leave an upper and lower chamber, theupper chamber to be supplied with afiltering su listan ce composed ot' apulp, such as paper is made oi'` or of paper reduced to a pulpycondition by maceration, and the lower chamber left open and t'rec forthe ltercd liquid to drop or pass into.

To enable others skilled in the art to make and use my invention, I willproceed to describe the saine with reference to the drawing.

A represents a metallic case, of any suitable size or shape, theinterior of which ease is divided horizontally vby a perforateddiaphragm, B, of woven wire, or of a punched metallic plate, which may'rest upon cross rods or bars a a a, &c., to support it and the materialthat lies upon it. Into the chamber above the diaphragm l place paperpulp, or a pulp made by the maceration of paper, as shown at b, thisbeing the filtering substance I use, and which I tind very cheap, easilyre placed, and very efcacious. In the lower head of the ease A there isa pipe, C, by which the filtered liquid may be conveyed or drawn ott'.The liquid to be filtered, it' it comes from a hydrant or reservoir,flows through the pipe D, thence through the ltering medium b, andthence out by the pipe C; but if the liquid is furnished to the filterby means ot' a pump, either a suction or force pump, then it would beintroduced at C and taken out at D, in which latter case the ilterin gmedium b should be below the diaphragm B.

E is a man hole covered by a tight-nut, c. This opening is made for theintroduction, removal, or replacement of the filtering medium, andavoids the necessity of making the outer case in two parts, which haveto be unscrewed and again screwed up to get at the ltering materialwithin, and this unscrewing requires the filter to be detached from thepipes, so that it can be openedan operation not easily accomplished bythe common users of such articles.

The paper pulp is not only a good filtering medium, but is easily washedout when lled with sediment, either by taking it out or by stirring itup in the filter, and at the same time allowing clean water to iowthrough it.

IVhat I claim as an improvement upon lters is- The single case A, withan inlet and exit pipe and mau-hole, an d a perforated diaphragmdividing the interior of the case into two apartments, one of whichshall contain paper pulp or macerated paper as a filtering` medium, allas herein described and represented.

WILLIAM T. CLASS. Witnesses:

(3i-IAS. JOSEPH, ERNsr RUBENow.

